Incandescent gas-burner



(No Model.)

F. DE L. WILLIAMS. INGANDESOENT GAS BURNER.

Patented Jan. 15, 1889.

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N. PETERS. Phowuum mn Washin ton. 04 c4 NITED STATES PATENT I OFFICE.

FREDERICK DE LAFONTAINE \VILLIAMS, OF LONDON, ENGLAND, ASSIGNOR TO THE IVELSBAOII INOANDESOENT GAS LIGHT COMPANY, OF JERSEY CITY, NEW JERSEY.

INCANDESCENT GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 396,316, dated January 15, 1889.

Application filed March 31, 1888. Serial No. 269,172. (No model.)'

To all whom, it nuty concern.-

Be it known that I, FREDERICK DE LAFON- TAINE WILLIAMs, a subject of the Queen of Great Britain, residing at London, England, have invented new and useful Improvements in Gas Lamps and Burners for Incandescent Illumination, of which the following is a specification.

This invention relates to gas lamps and burners to be used in connection with the hoods or mantles employed for the production of light by incandescence, as in the Velsbach system of incandesent gas-lighting.

The invention consists in the construction and combination of devices hereinafter described and claimed.

In theannexed drawings, Figure 1 is a sectional elevation of a Bunsen burner with gallery for chimney, a detachable cap, and a mantle-support. Fig. 2 shows the burner, gallery, and cap in side elevation, with the mantle or hood supported within the chimney. Fig. 3 is a perspective view of the detachable cap, and Fig. 4 is a sectional elevation of a modified form of cap.

In Figs. 1 and 2, the numeral 1 designates an internally-threaded thimble adapted for attachment to a gas-fixture and forming the lower or attaching portion of aBunsen burner, which comprises also a perforated disk, 2, and a vertical tube, 3, that are secured in the upper end of said thimble. The perforated disk 2 is supported on a shoulder, 4, in the upper end of the thimble. The lower end of the tube3 is then inserted from above to rest on the disk, and the parts are securely connected by swaging the upper edge of the thimble around and in close contact with the lower end of the tube' In the lower portion of the tube 3 are lateral openings 5, which admit air to mingle with the finely-divided currents of gas that issue through the perforations of the disk.

The gallery 6 is supported loosely on the burner-tube 3, as shown in Fig. 1.. This gallery comprises an annular body having upwardly and inwardly converging ribs 7, that merge in a collar, 8, having an inwardly-turned upper edge to rest on the top edge of the burner-tube 3, and so support the gallery. To

the under edge of the annular gallery-body are attached downwardly and inwardly converging arms 9, that are secured at their lower ends to a ring or collar, 10, which surrounds the burner-tube 3, and may rest on an annular bead, 11, spun thereon. The arms 9 may be extended upward through slots formed in a flange, 12, on the gallery, and be so shaped at their upper ends as to serve as catches 9 for engaging a chimney, 13, that rests on the annular gallery-body. If desired, the gallery may be provided with a globesupport, as shown by dotted outline in Fig. 2. The upper gallery ring or collar, 8, is formed with an annular bead, 1%, to support a cap, 15, which is detachably connected to said ring or collar by means of a bayonet-catch, 16, to facilitate its attachment and removal, as required.

The cap 15 consists of a cylindrical body having a grating, 17, at its top, which may be horizontal, as shown in Fig. 3,-or conical, as in Fig. 4. The flat or horizontal grating has a central upwardly-proj ectin g cone, 18, and the conical grating terminates in a solid apex, 18 of greater or less extent, as preferred.

The hood or mantle 19 is suspended within the chimney with its lower portion surrounding the cap 15, and is supported by a vertical rod, 20, having its upper end bent horizon- 8o tally into annular form, as usual. The lower portion of the rod or wire 20 is passed through an eye, 21, formed in one of the gallery-ribs 7, and is supported in a perforated lug, 22, on the gallery-body by means of a screw, 23, that enables the rod and attached mantle to be adjusted to any desired height. By this mode of attachment only one bend is required in the vertical portion of the rod 20 to bring the mantle into proper position above the burner. 0

In order to impart rigidity to the gallery and brace its ribs 7, said ribs are connected about midway their length by a horizontal rib or ring, 24, which also serves to prevent the passage of a match between the upper 5 and inner portion of the ribs '7, and makes it necessary to pass it betweenthe lower and outer portions of said ribs, so as to avoid injurious contact with' the hood or mantle in igniting the gas. 109

It will be seen that the construction and arrangement of the gallery and its attach-' ments are such as to aitord ample and convenient means for adjusting the various parts to produce the best illuminating effects from the ineandescing' hood.

\Vhat I claim as my invention isl. The combination, with a gas-burner, of a chimney-gallery having converging ribs 7, connected by a horizontal rib, 24, substantially as described.

2. The combination of a gas-burner, a man- 

